A) When the bird is far from the bar, what are the magnitude and direction (cloc

Question

A) When the bird is far from the bar, what are the magnitude and direction (clockwise or counterclockwise) of its angular momentum about a horizontal axis perpendicular to the plane of the figure and passing through point A?

B)When the bird is far from the bar, what are the magnitude and direction (clockwise or counterclockwise) of its angular momentum about a horizontal axis perpendicular to the plane of the figure and passing through point B?

C)When the bird is far from the bar, what are the magnitude and direction (clockwise or counterclockwise) of its angular momentum about a horizontal axis perpendicular to the plane of the figure and passing through point C?

D)When the bird is just ready to hit the bar, but is still flying horizontally, what are the magnitude and direction (clockwise or counterclockwise) of its angular momentum about a horizontal axis perpendicular to the plane of the figure and passing through point A?

E)When the bird is just ready to hit the bar, but is still flying horizontally, what are the magnitude and direction (clockwise or counterclockwise) of its angular momentum about a horizontal axis perpendicular to the plane of the figure and passing through point B?

F)When the bird is just ready to hit the bar, but is still flying horizontally, what are the magnitude and direction (clockwise or counterclockwise) of its angular momentum about a horizontal axis perpendicular to the plane of the figure and passing through point C?

Express your answers in kilogram meters squared per second to three significant figures. Let counterclockwise angular momentum be positive, clockwise angular momentum be negative.

Explanation / Answer

A) The angular momentum is the linear momentum times the normal (perpendicular) distance to the line of motion: Linear momentum = 0.300*3.25; the distance to A = 1.50 m; angular momentum = 1.46 kg*m²/s; the direction is counterclockwise

B) The linear momentum is the same, but the normal distance to point B is zero, so the angular momentum is zero

C) The linear momentum is the same, but the distance to C is 1.80 - 1.50 = 0.3 m; so the angular momentum is 0.29 kg*m²/s; The direction is clockwise

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.